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    PROCESS FOR THE PREPARATION OF NITROALKENES
    381.
    发明申请
    PROCESS FOR THE PREPARATION OF NITROALKENES 审中-公开
    制备硝基的方法

    公开(公告)号：WO02000575A1

    公开(公告)日：2002-01-03

    申请号：PCT/EP2001/006902

    申请日：2001-06-19

    IPC: C07B43/02 ,  C07C201/08 ,  C07C205/04 ,  C07C205/05 ,  C07D311/58

    CPC classification number: C07C201/08 ,  C07C2602/28 ,  C07D311/58 ,  C07C205/05

    Abstract: A process for the nitration of conjugated alkenes of formula (I) wherein R, R1, R2, R3 and R4 have the meanings reported in the description, which allows to obtain the corresponding beta -nitro-alkenes, characterised in that the nitrating agent is a mixture of an inorganic nitrite and iodine in the presence of an oxidising agent is described.

    Abstract translation: 用于硝化式（I）的共轭烯的方法，其中R，R 1，R 2，R 3和R 4具有说明书中报道的含义，其允许获得相应的β-硝基烯烃，其特征在于硝化剂为 描述了在氧化剂存在下无机亚硝酸盐和碘的混合物。

    PROCESS FOR THE PREPARATION OF NITRO COMPOUNDS AND METHOD FOR THE REMOVAL OF NITROGEN DIOXIDE
    383.
    发明申请
    PROCESS FOR THE PREPARATION OF NITRO COMPOUNDS AND METHOD FOR THE REMOVAL OF NITROGEN DIOXIDE 审中-公开
    硝基化合物的制备方法和去除二氧化钛的方法

    公开(公告)号：WO00069803A1

    公开(公告)日：2000-11-23

    申请号：PCT/JP2000/003112

    申请日：2000-05-16

    IPC: B01D53/34 ,  B01D53/56 ,  B01D53/77 ,  C07B43/02 ,  C07C201/06 ,  C07C201/08 ,  C07C201/16 ,  C07C203/08 ,  C07C205/02 ,  C07C205/04 ,  C07C205/05 ,  C07C205/06 ,  C07C205/55 ,  C07B61/00

    CPC classification number: C07C201/08 ,  B01D53/56 ,  C07B43/02 ,  C07C201/02 ,  C07C2601/14 ,  C07C2601/18 ,  C07C2601/20 ,  C07C2603/74 ,  Y02A50/2345 ,  C07C205/05 ,  C07C205/02 ,  C07C205/06 ,  C07C205/04 ,  C07C205/55 ,  C07C203/08

    Abstract: A process for the preparation of nitro compounds by reacting an organic substrate with nitrogen dioxide either in the presence of oxygen or under such conditions that the nitrogen dioxide/organic substrate ratio is less than 1 by mole. The reaction may be conducted in the presence of an imide compound such as N-hydroxyphthalimide and the organic substrate includes (a) aliphatic hydrocarbons, (b) alicyclic hydrocarbons, (c) nonaromatic heterocyclic compounds having ring-constituent carbon atoms bonded to hydrogen atoms, (d) compounds bearing aromatic rings and carbon-hydrogen bonds adjacent to the rings, (e) carbonyl compounds bearing carbon-hydrogen bonds adjacent to the carbonyl groups, and so on. This process enables efficient nitration of organic substrates even under relatively mild conditions.

    Abstract translation: 通过在氧气存在下或在二氧化氮/有机底物比小于1摩尔的条件下使有机底物与二氧化氮反应来制备硝基化合物的方法。 反应可以在N-羟基邻苯二甲酰亚胺等酰亚胺化合物的存在下进行，有机基质包括（a）脂肪族烃，（b）脂环族烃，（c）具有与氢原子键合的环状结构碳原子的非芳香族杂环化合物 ，（d）带有芳环的化合物和邻近环的碳 - 氢键，（e）与羰基相邻的具有碳 - 氢键的羰基化合物等。 该方法即使在相对温和的条件下也能有效地硝化有机底物。

    METHOD FOR PRODUCING A DINITRONAPHTHALENE-ISOMER MIXTURE HAVING A HIGH 1,5-DINITRONAPHTHALENE PROPORTION
    384.
    发明申请
    METHOD FOR PRODUCING A DINITRONAPHTHALENE-ISOMER MIXTURE HAVING A HIGH 1,5-DINITRONAPHTHALENE PROPORTION 审中-公开
    用于生产Dinitronaphthalene异构体混合物高占有率1.5 Dinitronaphthalene

    公开(公告)号：WO99012887A1

    公开(公告)日：1999-03-18

    申请号：PCT/EP1998/005408

    申请日：1998-08-26

    IPC: C07C201/08 ,  C07C205/06

    CPC classification number: C07C201/08 ,  C07C205/06

    Abstract: The invention relates to a method for producing a dinitronaphthalene-isomer mixture by nitrating nitronaphthalene. The invention is characterized in that nitronaphthalene is optionally reacted in an inert organic solvent with 1 to 20 times the quantity, in relation to the quantity of nitronaphthalene, of the 50 to 100 % nitric acid in the presence of a solid perfluorinated strong acidic ion exchanger.

    Abstract translation: 公开了一种用于通过硝基萘的硝化制备dinitronaphthalene异构体混合物，其特征在于硝基萘，可选地，基于在具有1〜20倍量至硝基萘的量的惰性有机溶剂，50〜100％浓度的硝酸中的存在的方法 固体全氟化强酸性离子交换反应。

    METHOD FOR PRODUCING A DINITRONAPHTHALENE-ISOMER MIXTURE WITH A HIGH PROPORTION OF 1,5-DINITRONAPHTHALENE
    385.
    发明申请
    METHOD FOR PRODUCING A DINITRONAPHTHALENE-ISOMER MIXTURE WITH A HIGH PROPORTION OF 1,5-DINITRONAPHTHALENE 审中-公开
    用于生产Dinitronaphthalene异构体混合物高占有率1.5 Dinitronaphthalene

    公开(公告)号：WO99012886A1

    公开(公告)日：1999-03-18

    申请号：PCT/EP1998/005409

    申请日：1998-08-26

    IPC: C07C201/08 ,  C07C205/06

    CPC classification number: C07C201/08 ,  C07C205/06

    Abstract: The invention relates to a method for producing a dinitronaphthalene-isomer mixture by nitration of nitronaphthalene. According to said method, nitronaphthalene is reacted in a solvent of formula (I), wherein X represents nitrogen or sulphur, n being equal to 0 when X is nitrogen, and n being equal to 1 when X is sulphur, R1 and R2 are a C1 to C4 alkyl group independently of each other and R1 and R2 together are a C4 or C5 alkylene chain, the quantity of said solvent being 1 to 20 times that of the nitronaphthalene, optionally in the presence of an acidic ion exchanger.

    Abstract translation: 公开了一种用于通过硝基萘的硝化，其中硝基萘，可选地，基于在酸性离子交换剂的存在下与1〜20倍量至硝基萘的量产生dinitronaphthalene异构体混合物，在式（I）的溶剂中的方法， 其中X是氮或硫，其中等于零对于其中X是氮，n和该X是硫，n是1的情况下，R1和R2独立地为C1至C4的情况下 烷基，或R1和R2一起表示C 4或C 5亚烷基链，进行反应。

    METHOD FOR TREATING AQUEOUS SOLUTIONS COMPRISING ACIDS AND NITRATED COMPOUNDS
    386.
    发明申请
    METHOD FOR TREATING AQUEOUS SOLUTIONS COMPRISING ACIDS AND NITRATED COMPOUNDS 审中-公开
    用于处理包含酸和硝酸化合物的水溶液的方法

    公开(公告)号：WO99008995A1

    公开(公告)日：1999-02-25

    申请号：PCT/FR1998/001793

    申请日：1998-08-11

    IPC: C07C201/16 ,  C07C205/06

    CPC classification number: C07C201/16 ,  C07C201/08 ,  Y10S210/903 ,  Y10S210/909 ,  C07C205/06

    Abstract: The invention concerns a method for treating an aqueous solution derived from sluicing of crude mononitrated or dinitrated aromatic compounds obtained by nitration of the corresponding aromatic compounds, consisting in: (a) contacting said aqueous solution with said aromatic compound thereby obtaining an aqueous phase and an organic phase; (b) recycling said organic phase in the nitration process; (c) distilling said aqueous phase; (d) recycling the resulting concentrated acid solution, in the nitration process; (e) recycling or eliminating the recuperated water after distillation.

    Abstract translation: 本发明涉及一种处理衍生自通过硝化相应芳族化合物得到的粗单硝化或二硝化芳族化合物的水溶液的方法，其包括：（a）使所述水溶液与所述芳族化合物接触，从而获得水相和 有机相; （b）在硝化过程中回收所述有机相; （c）蒸馏所述水相; （d）在硝化过程中回收所得浓酸溶液; （e）蒸馏后回收或除去回收的水。

    NITRATION PROCESS FOR DIPHENYL ETHERS
    387.
    发明申请
    NITRATION PROCESS FOR DIPHENYL ETHERS 审中-公开
    二苯醚的硝化过程

    公开(公告)号：WO99005087A1

    公开(公告)日：1999-02-04

    申请号：PCT/GB1998/001991

    申请日：1998-07-07

    IPC: C07B43/02 ,  C07C201/08 ,  C07C205/38 ,  C07C205/59 ,  C07C205/60 ,  C07C303/40 ,  C07C311/51

    CPC classification number: C07C201/08 ,  C07C303/40 ,  C07C311/51 ,  C07C205/59

    Abstract: A process for the preparation of a compound of general formula (I), wherein R is hydrogen or C1-C6 alkyl, C2-C6 alkenyl or C2-C6 alkynyl, any of which may optionally be substituted with one or more substituents selected from halogen and OH; or COOR , COR , CONR R or CONHSO2R ; R and R are each independently hydrogen or C1-C4 alkyl optionally substituted with one or more halogen atoms; R is a halogen atom or a group R ; R is hydrogen or halo; R is C1-C4 alkyl, C2-C4 alkenyl or C2-C4 alkynyl, any of which may optionally be substituted with one or more halogen atoms; or halo; the process comprising reacting a compound of general formula (II), wherein R , R and R are as defined for general formula (I) with a nitrating agent comprising nitric and sulphuric acids in the presence of an organic solvent and in the presence of acetic anhydride, the molar ratio of acetic anhydride to compound of general formula (II) is from about 1:1 to 3:1 characterised in that the acids are added sequentially to the reaction mixture.

    Abstract translation: 一种制备通式（I）化合物的方法，其中R 1为氢或C 1 -C 6烷基，C 2 -C 6烯基或C 2 -C 6炔基，其中任何一个可任选被一个或多个取代基取代 选自卤素和OH; 或COOR 4，COR 6，CONR 4 R 5或CONHSO 2 R 4; R 4和R 5各自独立地为氢或任选被一个或多个卤素原子取代的C 1 -C 4烷基; R 6是卤素原子或基团R 4; R 2是氢或卤素; R 3是C 1 -C 4烷基，C 2 -C 4烯基或C 2 -C 4炔基，其中任何一个可以任选地被一个或多个卤素原子取代; 或卤素; 所述方法包括使通式（II）的化合物（其中R 1，R 2和R 3如通式（I）所定义）与包含硝酸和硫酸的硝化剂在存在下 有机溶剂，在乙酸酐存在下，乙酸酐与通式（II）的化合物的摩尔比为约1:1至3:1，其特征在于将酸依次加入到反应混合物中。

    NITRATION PROCESS
    388.
    发明申请
    NITRATION PROCESS 审中-公开
    硝化过程

    公开(公告)号：WO1998019978A1

    公开(公告)日：1998-05-14

    申请号：PCT/GB1997002952

    申请日：1997-10-28

    Applicant: ZENECA LIMITED ,  BROWN, Stephen, Martin ,  MUXWORTHY, James, Peter ,  LENNON, Martin ,  ATHERTON, John, Heathcote ,  PREISTLEY, Ian, Jeffrey, Grassham

    Inventor： ZENECA LIMITED

    IPC: C07B43/02

    CPC classification number: C07C303/40 ,  C07B43/02 ,  C07C201/08 ,  C07C311/51 ,  C07C205/59

    Abstract: A process for the nitration of an aromatic or heteroaromatic compound with a nitrating agent comprising nitric acid or a mixture of nitric and sulphuric acids, characterised in that nitration is performed in a solvent comprising at least 50 % v/v of a C1-C6 alkyl ester of a C1-C4 carboxylic acid. The process is of particular use for the nitration of diphenyl ethers to give compounds which are useful as herbicides or as intermediates in the synthesis of herbicides.

    Abstract translation: 一种用包含硝酸或硝酸和硫酸的混合物的硝化剂硝化芳族或杂芳族化合物的方法，其特征在于，在包含至少50％v / v的C 1 -C 6烷基的溶剂中进行硝化 酯的C 1 -C 4羧酸。 该方法特别用于二苯醚的硝化，得到可用作除草剂的化合物或作为除草剂合成中的中间体。

    PROCESS FOR NITRATING DIPHENYL ETHER COMPOUNDS
    389.
    发明申请
    PROCESS FOR NITRATING DIPHENYL ETHER COMPOUNDS 审中-公开
    硝基二苯醚化合物的方法

    公开(公告)号：WO1997010199A1

    公开(公告)日：1997-03-20

    申请号：PCT/GB1996001892

    申请日：1996-08-06

    Applicant: ZENECA LIMITED ,  BROWN, Stephen, Martin ,  MUXWORTHY, James, Peter

    Inventor： ZENECA LIMITED

    IPC: C07C201/08

    CPC classification number: C07C201/08 ,  C07C303/40 ,  C07C311/51 ,  C07C205/59

    Abstract: A process for the preparation of a compound of general formula (I) wherein R is hydrogen or C1-C6 alkyl, C2-C6 alkenyl or C2-C6 alkynyl (any of which may optionally be substituted with one or more substituents selected from halogen and OH) or COOH, COH, COOR , COR , CONR R or CONHSO2R ; R and R are each independently hydrogen or C1-C4 alkyl optionally substituted with one or more halogen atoms; R is a halogen atom or a group R ; R is hydrogen or halo; R is C1-C4 alkyl, C2-C4 alkenyl or C2-C4 alkynyl, any of which may optionally be substituted with one or more halogen atoms, or halo; the process comprising reacting a compound of general formula (II) wherein R , R and R are as defined for general formula (I); with a nitrating agent comprising nitric acid or a mixture of nitric and sulphuric acids in the presence of an organic solvent and in the presence of acetic anhydride, characterised in that the molar ratio of acetic anhydride to compound of general formula (I) is from about 1:1 to 3:1.

    Abstract translation: 制备通式（I）的化合物的方法，其中R 1是氢或C 1 -C 6烷基，C 2 -C 6烯基或C 2 -C 6炔基（其中任何一个可以任选地被一个或多个取代基所取代 COOH，COH，COOR 4，COR 6，CONR 4 R 5或CONHSO 2 R 4; R 4和R 5各自独立地为氢或任选被一个或多个卤素原子取代的C 1 -C 4烷基; R 6是卤素原子或基团R 4; R 2是氢或卤素; R 3是C 1 -C 4烷基，C 2 -C 4烯基或C 2 -C 4炔基，其中任何一个可以任选地被一个或多个卤素原子或卤素取代; 该方法包括使通式（II）的化合物，其中R 1，R 2和R 3如通式（I）所定义; 在硝酸和硝酸和硫酸的混合物的存在下，在有机溶剂存在下和在乙酸酐存在下，硝酸化剂，其特征在于乙酸酐与通式（I）化合物的摩尔比为约 1：1到3：1。

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